3512340221 has 16 divisors (see below), whose sum is σ = 3902889984. Its totient is φ = 3140411904.

The previous prime is 3512340211. The next prime is 3512340229. The reversal of 3512340221 is 1220432153.

It is a cyclic number.

It is not a de Polignac number, because 3512340221 - 2¹⁸ = 3512078077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3512340229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29636 + ... + 88898.

It is an arithmetic number, because the mean of its divisors is an integer number (243930624).

Almost surely, 2^3512340221 is an apocalyptic number.

It is an amenable number.

3512340221 is a deficient number, since it is larger than the sum of its proper divisors (390549763).

3512340221 is a wasteful number, since it uses less digits than its factorization.

3512340221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59420.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 3512340221 is about 59264.9999662533. Note that the first 4 decimals coincide. The cubic root of 3512340221 is about 1520.0767823921.

Adding to 3512340221 its reverse (1220432153), we get a palindrome (4732772374).

The spelling of 3512340221 in words is "three billion, five hundred twelve million, three hundred forty thousand, two hundred twenty-one".